Converting Renders to Brush Strokes

Like others, I've been experimenting with converting a 3D scene to brush strokes using Geometry Nodes for use in a project. Obviously, a slightly exaggerated effect shown here. Will probably not use the bump at all in the project it's for.

2D render of a green ball on a green plane, made to look like it's been painted in thick acrylic.
Close-up of a 2D render of a green ball on a green plane, made to look like it's been painted in thick acrylic.

Couldn't figure out how to do it directly from 3D, so this just samples a 2D render for the brush stroke colours and has a few guide curves to direct the stroke direction. The key is to use 'Curve to Points' and use its 'Rotation' output to rotate the instances.

A 2D ball on a plane. Orange lines have been drawn over the the top of the image.
Screenshot of a Blender 3D Geometry Nodes node network focusing on the 'Curve to Points' node.

Another example:

Converted -> Original render (with a Grease Pencil paint-over)

A 3D render of a ship on a stormy sea, made of broad brush strokes.
A 3D render of a ship on a stormy sea.

Ray.